/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Name        : CConnectionMonitor.h

* Part of     : NetworkMonitor

* See class definition below.

* Version     : SIP/4.0

*

*/

/**

 @internalComponent

*/

#ifndef __CCONNECTIONMONITOR_H__

#define __CCONNECTIONMONITOR_H__

// INCLUDES

#include <es_sock.h>

// FORWARD DECLARATIONS

class MSIPNetworkObserver;

// CLASS DEFINITION

/**

 * CConnectionMonitor implements an active object for observing RConnection

 * progress notifications and reporting them to the MBearerOwner interface.

 */

class CConnectionMonitor

	: public CActive

	{

	public:	// Constructors and destructor

		/**

		 * Static constructor.

		 *

		 * @param aObserver Reference to observer

		 * @param aConnection Reference to observed connection

		 * @return An initialized instance of this class.

		 */

		static CConnectionMonitor* NewL( MSIPNetworkObserver& aObserver,

								   		 RConnection& aConnection );

		/// Destructor

		~CConnectionMonitor();

	public: // New methods

		void StartMonitoring();

		void StopMonitoring();

		void MonitorConnectionClosure();

	protected: // From CActive

		void DoCancel();

		void RunL();

	private: // New methods

		/**

		 * Translates state information from TNifProgress to

		 * a boolean value.

		 *

		 * @param aProgress Reference Nif progress information

		 * @return ETrue if the progress stage is KConnectionOpen

		 *		   or KLinkLayerOpen, EFalse otherwise.

		 */

		TBool TranslateStage( const TNifProgress& aProgress );

		void StartMonitor();

	private: // Constructors

		/**

		 * Constructor.

		 *

		 * @param aObserver Reference to observer

		 * @param aConnection Reference to observed connection

		 */

		CConnectionMonitor( MSIPNetworkObserver& aObserver,

					 		RConnection& aConnection );

		/// Default constructor. Not implemented.

		CConnectionMonitor();

	private: // Data

		/// Reference to our observer. Not owned.

		MSIPNetworkObserver& iObserver;

		/// Reference to the observed connection. Not owned.

		RConnection& iConnection;

		/// Network interface progress state.

		TNifProgressBuf iProgress;

		TBool iMonitorTotalClosure;

	};

#endif // __CCONNECTIONMONITOR_H__